US20010010783A1 - Pneumatic machine tool - Google Patents
Pneumatic machine tool Download PDFInfo
- Publication number
- US20010010783A1 US20010010783A1 US09/782,313 US78231301A US2001010783A1 US 20010010783 A1 US20010010783 A1 US 20010010783A1 US 78231301 A US78231301 A US 78231301A US 2001010783 A1 US2001010783 A1 US 2001010783A1
- Authority
- US
- United States
- Prior art keywords
- machine tool
- sensor
- carriage
- tool according
- driven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
- B23Q17/0961—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining by measuring power, current or torque of a motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/26—Fluid-pressure drives
- B23Q5/261—Fluid-pressure drives for spindles
- B23Q5/263—Fluid-pressure drives for spindles with means to control the feed rate by controlling the fluid flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/52—Limiting feed movement
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/42—Servomotor, servo controller kind till VSS
- G05B2219/42289—Avoid overload servo motor, actuator limit servo torque
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
- Y10T408/17—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control infeed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/65—Means to drive tool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/68—Tool or tool-support with thrust-applying machine-engaging screw
Definitions
- the present invention relates to a pneumatic machine tool particularly suited to use in the aeronautical industry.
- a pneumatic machine tool of the type comprising a telescopic tool-holder spindle comprising a drive shaft driven in rotation by a pneumatic motor and on which is slidingly mounted a hollow shaft with which a tool holder is associated and which is driven in translation by a control means comprising a carriage driven in translation by an endless screw via a nut carried by the carriage, the said endless screw being driven in rotation by an electric motor.
- This type of machine tool is often fitted with a ring allowing the machine tool to be locked to a machining rack.
- a central processing unit with which the machine tool is equipped actuates the electric motor so as to begin a phase of bringing the tool quickly up into contact with the workpiece that is to be machined.
- detection of drilling may be achieved by measuring the strength of the current drawn by the electric motor. This technique is ineffective in certain instances in so far as it cannot be used when the electric motor is a motor of the stepping type.
- the object of the invention is to alleviate the drawbacks of the state of the art.
- the subject of the invention is therefore a pneumatic machine tool comprising a telescopic spindle having a drive shaft driven in rotation by a pneumatic motor and on which is slidingly mounted a hollow shaft with which a tool holder is associated and which is driven in translation by control means comprising a carriage driven in translation by an endless screw via a nut carried by the carriage, the said endless screw being driven in rotation by an electric motor, characterized in that the carriage is provided with a force sensor designed to measure the thrust exerted on the tool holder and connected to a central processing unit in which is stored an algorithm for processing the signal delivered by the sensor and for monitoring the advance of the tool carried by the spindle.
- the pneumatic machine tool according to the invention may furthermore have one or more of the following features, taken in isolation or in any technically feasible combination:
- the processing algorithm comprises software means for calculating the difference between the signal delivered by the sensor and a thrust threshold value corresponding to a minimum value for the thrust exerted during the machining of a workpiece,
- the calculation means constitute means of detecting the progress of the drilling of a workpiece in the course of machining
- the electric motor is an electric stepping motor
- the machine tool further comprising a counter for measuring the axial displacement of the tool and the central processing unit controlling the stopping of a machining cycle in response to detection of the end of drilling as soon as, after drilling, the tool has advanced by a predetermined distance
- the senor is mounted between a member for immobilizing the nut on the carriage and the nut,
- the senor is incorporated into a member for holding the nut on the carriage
- the senor is mounted between a holding member and the carriage
- the senor consists of a strain gauge
- the senor consists of a piezoelectric sensor
- the senor is mounted in a Wheatstone bridge.
- FIG. 1 is a partial cross-sectional view of a machine tool according to the invention.
- FIG. 2 is a schematic partial view of an alternative form of the machine tool of FIG. 1;
- FIG. 3 illustrates the variation of the signal delivered by the force sensor as a function of time.
- FIG. 1 depicts a sectional view of a pneumatic machine tool according to the invention and denoted by the overall numerical reference 10 .
- the machine tool 10 comprises, placed inside a housing 12 : a pneumatic motor 14 supplied with compressed air and connected to an appropriate supply source; a telescopic tool-holder spindle 18 ; and means 24 for controlling the axial extension of the tool-holder spindle 18 .
- the pneumatic motor 14 and the means for controlling the axial extension of the spindle 18 are connected to a central processing unit (not visible in this figure) placed on an integrated circuit board 26 and in which one or more machine-control algorithms are stored, in the conventional way.
- the telescopic spindle 18 comprises a drive shaft 28 fixed in terms of axial translation and driven in rotation via a set of gears 20 and 22 by the pneumatic motor 14 , and a hollow shaft 36 with which is associated a tool holder 30 provided with means allowing the fitting of a machining tool (not depicted) and mounted so that it can move in terms of rotation and in terms of translation.
- the machine tool 10 is provided with a sensor bushing 32 associated with a pneumatic round to transmit precise information as to the position of the tool with respect to the workpiece to be machined, this information being transmitted to the central processing unit so as to allow the machine tool to correct the displacement of the hollow shaft 36 and of the tool holder 30 accordingly.
- the sensor bushing 32 is surrounded by a ring 34 for locking the machine tool onto a machining rack.
- the means for controlling the axial extension of the tool-holder spindle 18 comprise the hollow shaft 36 and a carriage 38 provided with a recirculating-roller nut visible in FIG. 2.
- the shaft 36 is driven in translation by the carriage 38 , the nut 40 of which has passing through it an endless screw 42 driven in rotation by an electric motor 44 , such as a stepping motor for example, via a belt 46 and pulleys 48 , 50 .
- the electric motor 44 is controlled by the central processing unit.
- the proximal end of the tool holder 30 translates as one with the shaft 36 .
- rotating the endless screw 42 causes, under the action of the recirculating-roller nut 40 , a consecutive displacement in translation of the shaft 36 and therefore causes the tool holder 30 to advance.
- the machine tool 10 comprises, incorporated into the carriage 38 , a force sensor designed to measure the thrusting force exerted on the telescopic spindle 18 and, in particular, on the tool holder 30 .
- the force sensor is connected to the central processing unit in such a way as to supply the latter with a signal measuring the force exerted.
- the force sensor preferably consists of a strain gauge, so as to provide a relatively precise indication of the force exerted and to do so at low cost.
- the strain gauge may be replaced by a piezoelectric sensor.
- a force sensor 52 is inserted, for example, between a holding member 53 and the carriage 38 .
- a force sensor 55 is located between the nut 40 carried by the carriage 38 and a member 56 for immobilizing the nut on the carriage 38 .
- the force sensor 52 is mounted in a Wheatstone bridge of the conventional type (not depicted) and thus supplies the central processing unit with a voltage that is indicative of the force exerted on the telescopic spindle 18 and on the tool holder 30 .
- the electric motor 44 driving the endless screw 42 in rotation (FIG. 2) consists of an electric stepping motor.
- the rate of advance of the tool is linear and varies between 0 and 700 mm/min.
- the electric stepping motor 44 is activated so as to carry out a phase of quickly bringing it up to the workpiece that is to be drilled, without engaging with it.
- the subsequent phase II corresponds to actually machining the workpiece.
- this phase begins when the signal S delivered by the sensor 52 or 55 exceeds a threshold value S min which corresponds to a minimum value of thrust exerted during machining of a workpiece.
- this value S min corresponds to a force of 20 kg for the drilling of an orifice of 7 mm diameter.
- the central processing unit detects the instant at which the signal S once again drops below this value S min , which corresponds to the end of the drilling of the workpiece.
- the central processing unit reads the count value off the counter then stops the machining cycle as soon as, after drilling, the tool has advanced by a predetermined distance, for example by 10 mm.
- the force sensor is inserted between the member for holding the nut in the carriage and the nut.
Abstract
This pneumatic machine tool comprises a telescopic spindle (18) having a drive shaft (28) driven in rotation by a pneumatic motor (14) and on which is slidingly mounted a hollow shaft (36) with which a tool holder (30) is associated and which is driven in translation by control means (24) comprising a carriage (38) driven in translation by an endless screw (42) via a nut (40) carried by the carriage (38), the said endless screw being driven in rotation by an electric motor, and is characterized in that the carriage is provided with a force sensor (52; 55) designed to measure the thrust exerted on the tool holder (30) and connected to a central processing unit in which is stored an algorithm for processing the signal delivered by the sensor and for monitoring the advance of the tool carried by the spindle.
Description
- The present invention relates to a pneumatic machine tool particularly suited to use in the aeronautical industry.
- Pneumatic machines are widespread and often preferred over electrically driven machines because of their performance.
- The prior art already teaches a pneumatic machine tool of the type comprising a telescopic tool-holder spindle comprising a drive shaft driven in rotation by a pneumatic motor and on which is slidingly mounted a hollow shaft with which a tool holder is associated and which is driven in translation by a control means comprising a carriage driven in translation by an endless screw via a nut carried by the carriage, the said endless screw being driven in rotation by an electric motor.
- This type of machine tool is often fitted with a ring allowing the machine tool to be locked to a machining rack.
- Once the machine tool has been mounted on this rack, a central processing unit with which the machine tool is equipped actuates the electric motor so as to begin a phase of bringing the tool quickly up into contact with the workpiece that is to be machined.
- This phase continues in the form of a machining phase proper. Finally, after machining, the cycle is finished.
- To date, there are various techniques that enable the end of machining to be detected.
- In particular, detection of drilling may be achieved by measuring the strength of the current drawn by the electric motor. This technique is ineffective in certain instances in so far as it cannot be used when the electric motor is a motor of the stepping type.
- It is also possible to detect the end of drilling of the workpiece by detecting an increase in the rotational speed of the drive shaft of the machine tool. This technique has a certain number of drawbacks particularly as a result of the fact that it is unable to supply precise information in so far as the rotational speed of the shaft varies according to a great many parameters, for example according to the amount of lubricant on the workpiece.
- The object of the invention is to alleviate the drawbacks of the state of the art.
- The subject of the invention is therefore a pneumatic machine tool comprising a telescopic spindle having a drive shaft driven in rotation by a pneumatic motor and on which is slidingly mounted a hollow shaft with which a tool holder is associated and which is driven in translation by control means comprising a carriage driven in translation by an endless screw via a nut carried by the carriage, the said endless screw being driven in rotation by an electric motor, characterized in that the carriage is provided with a force sensor designed to measure the thrust exerted on the tool holder and connected to a central processing unit in which is stored an algorithm for processing the signal delivered by the sensor and for monitoring the advance of the tool carried by the spindle.
- The pneumatic machine tool according to the invention may furthermore have one or more of the following features, taken in isolation or in any technically feasible combination:
- the processing algorithm comprises software means for calculating the difference between the signal delivered by the sensor and a thrust threshold value corresponding to a minimum value for the thrust exerted during the machining of a workpiece,
- the calculation means constitute means of detecting the progress of the drilling of a workpiece in the course of machining,
- the electric motor is an electric stepping motor, the machine tool further comprising a counter for measuring the axial displacement of the tool and the central processing unit controlling the stopping of a machining cycle in response to detection of the end of drilling as soon as, after drilling, the tool has advanced by a predetermined distance,
- the sensor is mounted between a member for immobilizing the nut on the carriage and the nut,
- the sensor is incorporated into a member for holding the nut on the carriage,
- the sensor is mounted between a holding member and the carriage,
- the sensor consists of a strain gauge,
- the sensor consists of a piezoelectric sensor,
- the sensor is mounted in a Wheatstone bridge.
- Other features and advantages will emerge from the following description given merely by way of example and made with reference to the appended drawings in which:
- FIG. 1 is a partial cross-sectional view of a machine tool according to the invention;
- FIG. 2 is a schematic partial view of an alternative form of the machine tool of FIG. 1; and
- FIG. 3 illustrates the variation of the signal delivered by the force sensor as a function of time.
- FIG. 1 depicts a sectional view of a pneumatic machine tool according to the invention and denoted by the overall
numerical reference 10. - The
machine tool 10 comprises, placed inside a housing 12: apneumatic motor 14 supplied with compressed air and connected to an appropriate supply source; a telescopic tool-holder spindle 18; and means 24 for controlling the axial extension of the tool-holder spindle 18. - The
pneumatic motor 14 and the means for controlling the axial extension of thespindle 18 are connected to a central processing unit (not visible in this figure) placed on an integratedcircuit board 26 and in which one or more machine-control algorithms are stored, in the conventional way. - The
telescopic spindle 18 comprises adrive shaft 28 fixed in terms of axial translation and driven in rotation via a set ofgears pneumatic motor 14, and ahollow shaft 36 with which is associated atool holder 30 provided with means allowing the fitting of a machining tool (not depicted) and mounted so that it can move in terms of rotation and in terms of translation. - The axial displacement of the
hollow shaft 36 and of thetool holder 30 is controlled by the control means 24. - Furthermore, and as is conventional, the
machine tool 10 is provided with a sensor bushing 32 associated with a pneumatic round to transmit precise information as to the position of the tool with respect to the workpiece to be machined, this information being transmitted to the central processing unit so as to allow the machine tool to correct the displacement of thehollow shaft 36 and of thetool holder 30 accordingly. - The sensor bushing32 is surrounded by a
ring 34 for locking the machine tool onto a machining rack. - The means for controlling the axial extension of the tool-
holder spindle 18 comprise thehollow shaft 36 and acarriage 38 provided with a recirculating-roller nut visible in FIG. 2. - The
shaft 36 is driven in translation by thecarriage 38, thenut 40 of which has passing through it anendless screw 42 driven in rotation by anelectric motor 44, such as a stepping motor for example, via abelt 46 andpulleys electric motor 44 is controlled by the central processing unit. - As can be seen in FIG. 1, the proximal end of the
tool holder 30 translates as one with theshaft 36. - Thus, and as will be appreciated, rotating the
endless screw 42 causes, under the action of the recirculating-roller nut 40, a consecutive displacement in translation of theshaft 36 and therefore causes thetool holder 30 to advance. - In order to monitor the advance of the
tool holder 30 of the tool-holder spindle 18, themachine tool 10 comprises, incorporated into thecarriage 38, a force sensor designed to measure the thrusting force exerted on thetelescopic spindle 18 and, in particular, on thetool holder 30. - The force sensor is connected to the central processing unit in such a way as to supply the latter with a signal measuring the force exerted.
- The force sensor preferably consists of a strain gauge, so as to provide a relatively precise indication of the force exerted and to do so at low cost.
- It will, however, be appreciated that if there is a desire to obtain greater accuracy, the strain gauge may be replaced by a piezoelectric sensor.
- As can be seen in FIG. 1, a
force sensor 52 is inserted, for example, between aholding member 53 and thecarriage 38. - In the embodiment of FIG. 2, a
force sensor 55 is located between thenut 40 carried by thecarriage 38 and amember 56 for immobilizing the nut on thecarriage 38. - More specifically, the
force sensor 52 is mounted in a Wheatstone bridge of the conventional type (not depicted) and thus supplies the central processing unit with a voltage that is indicative of the force exerted on thetelescopic spindle 18 and on thetool holder 30. - The
electric motor 44 driving theendless screw 42 in rotation (FIG. 2) consists of an electric stepping motor. - It is associated with a counter which increments up on each rotation of the
endless screw 42, thus giving an indication as to the axial displacement of the tool. - For example, for drilling, the rate of advance of the tool is linear and varies between 0 and 700 mm/min.
- This makes it possible to provide an exact indication of the depth of the drilling and for this to be constantly monitored. It is thus possible to advance more quickly or more slowly in a given material, to carry out clearing cycles, and to perform isolated operations of extracting the spindle without rotation, etc.
- The technique employed within the machine tool which has just been described will now be explained with reference to FIG. 3, in the case of the drilling of a workpiece.
- First of all, during a first phase I, the
electric stepping motor 44 is activated so as to carry out a phase of quickly bringing it up to the workpiece that is to be drilled, without engaging with it. - During this phase I, the signal S delivered by the
force sensor - At the end of this initial phase I, the subsequent phase II corresponds to actually machining the workpiece.
- It will be noted that this phase begins when the signal S delivered by the
sensor - For example, this value Smin corresponds to a force of 20 kg for the drilling of an orifice of 7 mm diameter.
- It will be noted that as soon as the signal S exceeds this threshold value Smin, indicating that the machine tool is in working advance mode, the central processing unit proceeds with actually processing the signal S so as to monitor the advance of the tool.
- More specifically, to detect the end of the drilling of the workpiece, the central processing unit detects the instant at which the signal S once again drops below this value Smin, which corresponds to the end of the drilling of the workpiece.
- As soon as the end of the drilling has been detected, the central processing unit reads the count value off the counter then stops the machining cycle as soon as, after drilling, the tool has advanced by a predetermined distance, for example by 10 mm.
- It will be appreciated that the invention which has just been described and which, for monitoring the advance of the tool, uses a force sensor associated with a nut used to advance the tool, makes it possible to provide a precise indication of the end of machining of a workpiece and therefore to optimize a machining cycle for an initial displacement value.
- It will finally be noted that the invention is not restricted to the embodiment described.
- Indeed, in the machine tool described with reference to FIG. 2, the force sensor is inserted between the member for holding the nut in the carriage and the nut.
- As a variant, it could also be incorporated into the holding member itself.
Claims (10)
1. Pneumatic machine tool comprising a telescopic spindle (18) having a drive shaft (28) driven in rotation by a pneumatic motor (14) and on which is slidingly mounted a hollow shaft (36) with which a tool holder (30) is associated and which is driven in translation by control means (24) comprising a carriage (38) driven in translation by an endless screw (42) via a nut (40) carried by the carriage (38), the said endless screw being driven in rotation by an electric motor, characterized in that the carriage is provided with a force sensor (52; 55) designed to measure the thrust exerted on the tool holder (30) and connected to a central processing unit in which is stored an algorithm for processing the signal delivered by the sensor and for monitoring the advance of the tool carried by the spindle.
2. Machine tool according to , characterized in that the processing algorithm comprises software means for calculating the difference between the signal (S) delivered by the sensor (52; 55) and a thrust threshold value corresponding to a minimum value for the thrust exerted during the machining of a workpiece.
claim 1
3. Machine tool according to , characterized in that the calculation means constitute means of detecting the progress of the drilling of a workpiece in the course of machining.
claim 2
4. Machine tool according to , characterized in that the electric motor is an electric stepping motor and in that it further comprises a counter for measuring the axial displacement of the tool, the central processing unit controlling the stopping of a machining cycle in response to detection of the end of drilling as soon as, after drilling, the tool has advanced by a predetermined distance.
claim 3
5. Machine tool according to , characterized in that the sensor (55) is mounted between a member (56) for immobilizing the nut (40) on the carriage (38) and the nut (40).
claim 1
6. Machine tool according to , characterized in that the sensor is incorporated into a member for holding the nut on the carriage.
claim 1
7. Machine tool according to , characterized in that the sensor (52) is mounted between a holding member (53) and the carriage (38).
claim 1
8. Machine tool according to , characterized in that the sensor (52; 55) consists of a strain gauge.
claim 1
9. Machine tool according to , characterized in that the sensor (52; 55) consists of a piezoelectric sensor.
claim 1
10. Machine tool according to , characterized in that the sensor (52; 55) is mounted in a Wheatstone bridge.
claim 1
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0001154A FR2804353B1 (en) | 2000-01-28 | 2000-01-28 | PNEUMATIC MACHINING MACHINE |
FR0001154 | 2000-01-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010010783A1 true US20010010783A1 (en) | 2001-08-02 |
US6565293B2 US6565293B2 (en) | 2003-05-20 |
Family
ID=8846456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/782,313 Expired - Fee Related US6565293B2 (en) | 2000-01-28 | 2001-02-14 | Pneumatic machine tool |
Country Status (5)
Country | Link |
---|---|
US (1) | US6565293B2 (en) |
EP (1) | EP1120190B1 (en) |
DE (1) | DE60105663T2 (en) |
ES (1) | ES2232572T3 (en) |
FR (1) | FR2804353B1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1400310A1 (en) * | 2002-09-19 | 2004-03-24 | CLAAS Fertigungstechnik GmbH | method and device for determining depth of penetration |
US20040223820A1 (en) * | 2003-05-07 | 2004-11-11 | Daive Shieh | Drilling device having driving and rotating motor |
DE10150264B4 (en) * | 2001-10-11 | 2006-12-21 | Airbus Deutschland Gmbh | Method and device for rivet selection for riveted joints |
EP1764186A1 (en) * | 2005-09-14 | 2007-03-21 | Werner Kluft | System for controlling a machining process with axial piezoelectric sensors in the working spindle |
JP2009543698A (en) * | 2006-07-18 | 2009-12-10 | キストラー ホールディング アクチエンゲゼルシャフト | Bonding unit |
CN103691990A (en) * | 2013-12-10 | 2014-04-02 | 西南石油大学 | Turbine-driven deep hole drilling and boring machine |
CN105195825A (en) * | 2015-09-30 | 2015-12-30 | 浙江精一重工有限公司 | Automatic deep hole reaming machine |
CN111715920A (en) * | 2019-03-20 | 2020-09-29 | 株式会社斯巴鲁 | Tool driving device, tool feeding mechanism for tool rotating device, and hole machining method |
EP3991894A1 (en) * | 2020-10-28 | 2022-05-04 | Sugino Machine Limited | Drilling machine |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7523785B2 (en) * | 2006-03-09 | 2009-04-28 | Maersk Olie Og Gas A/S | System for injecting a substance into an annular space |
WO2009117836A1 (en) * | 2008-03-28 | 2009-10-01 | Quanser Consulting Inc. | Drill assembly and method to reduce drill bit plunge |
EP3649969A1 (en) * | 2008-06-26 | 2020-05-13 | Smart Medical Devices, Inc. | Depth controllable and measurable medical driver devices |
US20100074701A1 (en) * | 2008-09-23 | 2010-03-25 | Kirk Kempen | Method of drilling a workpiece |
US8608412B2 (en) * | 2009-01-29 | 2013-12-17 | Thomas Esslinger | Feed mechanism for a boring bar |
CN101767284B (en) * | 2009-06-30 | 2011-06-29 | 郑伟民 | Numerically controlled unit head |
US9696710B2 (en) * | 2009-11-05 | 2017-07-04 | Vibration Technologies, Llc | Method and system for measuring the dynamic response of a structure during a machining process |
WO2011123703A1 (en) * | 2010-03-31 | 2011-10-06 | Smart Medical Devices, Inc. | Depth controllable and measurable medical driver devices |
US8925169B2 (en) * | 2011-09-21 | 2015-01-06 | The Boeing Company | Drill force indicator for hand-operated drills |
US10646280B2 (en) | 2012-06-21 | 2020-05-12 | Globus Medical, Inc. | System and method for surgical tool insertion using multiaxis force and moment feedback |
US10874466B2 (en) | 2012-06-21 | 2020-12-29 | Globus Medical, Inc. | System and method for surgical tool insertion using multiaxis force and moment feedback |
GB2533423A (en) * | 2014-12-19 | 2016-06-22 | Airbus Operations Ltd | Method and apparatus for determining a hole depth |
CN113081155A (en) | 2015-09-03 | 2021-07-09 | 史赛克公司 | Powered surgical drill with integrated depth gauge including probe sliding on drill bit |
FR3042524B1 (en) * | 2015-10-14 | 2017-12-22 | Zodiac Pool Care Europe | DEVICE FOR EXTRACTING A SWIMMING POOL CLEANER |
JP2019509788A (en) | 2016-02-12 | 2019-04-11 | スマート・メディカル・デバイシーズ・インコーポレイテッドSmart Medical Devices, Inc. | Driving apparatus and method for determining material strength in real time |
US10201883B2 (en) | 2016-07-15 | 2019-02-12 | Mabee Engineering Solutions Inc. | Air tool monitoring apparatus, air tool incorporating same, system for monitoring multiple air tools equipped with same, and methods of using same |
US10569376B2 (en) | 2016-07-15 | 2020-02-25 | Mabee Engineered Solutions Inc. | Air tool monitoring apparatus, air tool incorporating same, system for monitoring multiple air tools equipped with same, and methods of using same |
CA3073178A1 (en) | 2017-08-17 | 2019-02-21 | Stryker Corporation | Surgical handpiece for measuring depth of bore holes and related accessories |
US11896239B2 (en) | 2017-08-17 | 2024-02-13 | Stryker Corporation | Surgical handpiece system for depth measurement and related accessories |
USD893027S1 (en) | 2018-12-21 | 2020-08-11 | Stryker Corporation | Measurement head for surgical tool |
USD954950S1 (en) | 2020-11-18 | 2022-06-14 | Stryker Corporation | Measurement head for a surgical tool |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2978689A (en) * | 1955-05-09 | 1961-04-04 | Cross Co | Control mechanism for machine tools and the like |
US3244029A (en) * | 1964-02-28 | 1966-04-05 | Heald Machine Co | Machine tool |
US3571834A (en) * | 1968-04-15 | 1971-03-23 | Cincinnati Milacron Inc | Machine tool adaptive control |
JPS5455879A (en) * | 1977-10-13 | 1979-05-04 | Nachi Fujikoshi Corp | Adaptive control circuit for deep hole drilling machine |
US4310269A (en) * | 1980-02-19 | 1982-01-12 | Northrop Corporation | Drill break-through sensor |
US4688970A (en) * | 1985-08-09 | 1987-08-25 | Dresser Industries, Inc. | Power drill and automatic control system therefore |
JPH028689Y2 (en) * | 1985-12-27 | 1990-03-01 | ||
JPS6434602A (en) * | 1987-07-27 | 1989-02-06 | Teijin Seiki Co Ltd | Spindle support device |
JPS6434632A (en) * | 1987-07-29 | 1989-02-06 | Okuma Machinery Works Ltd | Positioning error compensator |
JPS6464747A (en) * | 1987-09-02 | 1989-03-10 | Mazda Motor | Feeding device for machine tool |
JPH01222851A (en) * | 1988-03-03 | 1989-09-06 | Kitamura Mach Co Ltd | Method for detecting thrust force of main spindle of machine tool |
US4822215A (en) * | 1988-05-26 | 1989-04-18 | Allen-Bradley Company, Inc. | Thrust and torque sensitive drill |
US4854786A (en) * | 1988-05-26 | 1989-08-08 | Allen-Bradley Company, Inc. | Computer controlled automatic shift drill |
DE3828550A1 (en) * | 1988-08-23 | 1990-03-01 | Rheinmetall Gmbh | Force measuring ring |
DE4314147A1 (en) * | 1992-06-16 | 1993-12-23 | Steinel Gmbh Voest Alpine | Machine tool esp. lathe - has motorised linear movement drive for headstock located movable in bed guide in housing provided with mounting for centring tip and signal transmitter for controlling linear movement |
-
2000
- 2000-01-28 FR FR0001154A patent/FR2804353B1/en not_active Expired - Fee Related
-
2001
- 2001-01-25 DE DE60105663T patent/DE60105663T2/en not_active Expired - Lifetime
- 2001-01-25 ES ES01400203T patent/ES2232572T3/en not_active Expired - Lifetime
- 2001-01-25 EP EP01400203A patent/EP1120190B1/en not_active Expired - Lifetime
- 2001-02-14 US US09/782,313 patent/US6565293B2/en not_active Expired - Fee Related
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10150264B4 (en) * | 2001-10-11 | 2006-12-21 | Airbus Deutschland Gmbh | Method and device for rivet selection for riveted joints |
EP1400310A1 (en) * | 2002-09-19 | 2004-03-24 | CLAAS Fertigungstechnik GmbH | method and device for determining depth of penetration |
US20040223820A1 (en) * | 2003-05-07 | 2004-11-11 | Daive Shieh | Drilling device having driving and rotating motor |
EP1764186A1 (en) * | 2005-09-14 | 2007-03-21 | Werner Kluft | System for controlling a machining process with axial piezoelectric sensors in the working spindle |
US20070063620A1 (en) * | 2005-09-14 | 2007-03-22 | Werner Kluft | Process monitoring device and method for process monitoring at machine tools |
JP2009543698A (en) * | 2006-07-18 | 2009-12-10 | キストラー ホールディング アクチエンゲゼルシャフト | Bonding unit |
US20100005639A1 (en) * | 2006-07-18 | 2010-01-14 | Kistler Holding Ag | Joining unit |
US8302273B2 (en) * | 2006-07-18 | 2012-11-06 | Kistler Holding Ag | Joining unit |
CN103691990A (en) * | 2013-12-10 | 2014-04-02 | 西南石油大学 | Turbine-driven deep hole drilling and boring machine |
CN105195825A (en) * | 2015-09-30 | 2015-12-30 | 浙江精一重工有限公司 | Automatic deep hole reaming machine |
CN111715920A (en) * | 2019-03-20 | 2020-09-29 | 株式会社斯巴鲁 | Tool driving device, tool feeding mechanism for tool rotating device, and hole machining method |
EP3991894A1 (en) * | 2020-10-28 | 2022-05-04 | Sugino Machine Limited | Drilling machine |
Also Published As
Publication number | Publication date |
---|---|
EP1120190A1 (en) | 2001-08-01 |
US6565293B2 (en) | 2003-05-20 |
DE60105663T2 (en) | 2005-02-10 |
EP1120190B1 (en) | 2004-09-22 |
DE60105663D1 (en) | 2004-10-28 |
ES2232572T3 (en) | 2005-06-01 |
FR2804353B1 (en) | 2002-04-19 |
FR2804353A1 (en) | 2001-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6565293B2 (en) | Pneumatic machine tool | |
US4254676A (en) | Workholding | |
US4157231A (en) | Hydraulic drill unit | |
US10369673B2 (en) | Spindle device for a program-controlled machine tool | |
US5161922A (en) | Electronic micro-stop/tool failure monitor | |
JPH01281807A (en) | Controlling method for drill | |
EP0962281A3 (en) | Industrial machine having abnormal vibration detecting function | |
JPH09300176A (en) | Grinding system, and method of detecting abnormal conditions of the same | |
FI117193B (en) | Method for Controlling Feed in Centrifugal Plywood Lathes | |
WO2008001735A1 (en) | Deep hole drilling apparatus | |
US4697964A (en) | Boring machine | |
KR880002545B1 (en) | Machine tool | |
EP0357798A1 (en) | Method for detecting thrust force of main spindle of machine tool | |
US4718175A (en) | Device for mechanical checking for toolbreakage in machine tools | |
JP5711015B2 (en) | Sizing device | |
EP0354639A3 (en) | A cutting apparatus for a noncircular cross section | |
US20060194636A1 (en) | Spindle sleeve for a machine tool | |
JP4707813B2 (en) | Gear shaper and its operation method | |
CN113296471B (en) | Numerical control machine tool with early warning mechanism and control system thereof | |
JPH0722874B2 (en) | Automatic control method for vibration cutting equipment | |
JP2006026864A (en) | Fine working device | |
JPH07148646A (en) | Cutting machining device | |
JPS63102854A (en) | Abnormal tool changing method | |
JPS6146260B2 (en) | ||
JPS62162405A (en) | Drilling method and device therefor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: RECOULES S.A., FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DESMOULINS, MARCEL;REEL/FRAME:011559/0277 Effective date: 20010115 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20150520 |